Characteristic x-ray spectra Sharp peaks in the spectrum can be seen if the (e. g. 25 kV for molybdenum/ir/ accelerating voltage is high cha target) These peaks fall into sets which are given the names, KL M lines with swI increasing wavelength WAVELENGTH (angstroms)Characteristic x-ray Spectra ▪ Sharp peaks in the spectrum can be seen if the accelerating voltage is high (e.g. 25 kV for molybdenum target). ▪ These peaks fall into sets which are given the names, K, L, M…. lines with increasing wavelength. Mo